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Finding the Fourth Proportional to 348.48, 522.80 and 245.96

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Solution

The fourth proportional to 348.48, 522.80 and 245.96 is: 369.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.48 : 522.80 = 245.96 : x
  2. Step 2: Convert to fraction form
    348.48/522.80 = 245.96/x
  3. Step 3: Cross multiply
    348.48x = 522.80 × 245.96
  4. Step 4: Simplify right side
    348.48x = 128,587.89
  5. Step 5: Solve for x
    x = 128,587.89/348.48
  6. Step 6: Final answer
    x = 369.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.